Maximum speed: 55mph + 5mph = 60mph
minimum speed: 55mph - 5mph = 50mph
Hope this helped?
Answer:
about 306 miles.
Step-by-step explanation:
68 times four and a half is 306.
hope this helped! :)
Answer:
t = 1.47 s
Step-by-step explanation:
y(x,t) = 0.6 sin (8 x – 24 t )
compare it with
y = A sin (k x - ω t)
now, A = 0.6
k = 8
ω = 24 rad/s
we know ω = 2πf
we know that
time taken
t = distance/time
= 4.4 / 3
t = 1.47 s
Answer:
200
frogs
Step-by-step explanation:
To get this, we simply substitute the value of 8 for t in the exponential equation
we have this;
f(8) = 180(1.02)^8
f(8) = 210.89
which is approximately 211
To the nearest hundredth, the approximate value is 200
Answer:
Degree of freedom = 2
Expected frequency = 80%
Critical value, = 5.991
χ² statistic = 3.5
Step-by-step explanation:
Given the data :
Hong Kong New York Paris
Yes 86% 76% 78%
No 14% 24% 22%
The degree of freedom for the Chisquare statistic is given as :
(no of rows - 1) * (number of columns - 1)
Number of rows = 2
Number of columns = 3
. Degree of freedom = (2-1) * (3-1) = 1*2 = 2
Expected frequency = (Row total * column total) / grand total
The expected frequency of Hong Kong / Yes cell :
Row total = (86+76+78) = 240
Column total = (86+14) = 100
Grand total, N = (14+24+22)+240 = 300
Expected frequency = (240*100)/300 = 80%
The critical value :
At α - level = 0.05 ; df = 2
Critical value = 5.991
χ² = Σ(observed - Expected)² / Expected
The expected values :
80 80 80
20 20 20
Hence,
χ² = Σ(86-80)²/80 + (76-80)²/80 + (78-80)²/80 + (14-20)²/20 + (24-20)²/20 + (22-20)²/20
χ² statistic = 3.5